Service difficulty report · Control Unit · Boeing 767222

Difficulty date
May 18, 2001
Submitted
June 21, 2001
Operation
Air carrier
Aircraft
N610UA
Make and model
Boeing 767222
Aircraft serial
21871
Aircraft time
70,677 hours, 17,600 cycles
Engine
Pwa JT9D7R4D
Part
Control Unit
Condition
Out Of Rig
Location
Engine
Stage of operation
CR
How discovered
O
Nature of condition
M
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FUEL QTY FOR WINGS PLUS-MINUS 1700 LBS BETWEEN GAUGES. VARIED THROUGHOUT FLIGHT. FMC QTY APPEARS ACCURATE. SUPPLEMENTAL DATA UPDATE ENGINE WAS REPLACED DUE TO OVERTEMP. DURING ENGINE PRE-REPAIR RUN, FOUND ENGINE VANE BLEED CONTROL(EVBC) WAS OUT OF TRIM. EVBC WILL BE OVERHAULED